create-tech-spec

A template-driven workflow for creating a technical specification, a document that records implementation details and design decisions.

In plain words
What is it for?
Use it to create a draft specification with a generated filename, identifier, dates, and the project’s required directory structure.
Why use it?
It gives new specifications consistent numbering, metadata, folders, status, and optional links to related RFCs.

Skill for Claude CodeCodex

Part of the devops-data plugin — 17 skills, 4 agents shipped together

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/jpoutrin/product-forge/create-tech-spec
Any agent
npx skills add jpoutrin/product-forge --skill create-tech-spec
Clone the repo
git clone --depth 1 https://github.com/jpoutrin/product-forge

Made for: Claude Code, Codex.

Or install devops-data, the plugin that ships this one along with the rest of its 17 skills, 4 agents.

Per session 12 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 735 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00012 $0.00735
Opus 5 $0.00006 $0.00367
Sonnet 5 $0.00002 $0.00147
Haiku 4.5 $0.00001 $0.00073

Measured 3d ago against content hash d56eb048db0a, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

create-tech-spec scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 3d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

plugins/devops-data/skills/create-tech-spec/SKILL.md · 107 lines

How it starts

The opening of the file, as written. The whole thing — 107 lines — stays where its author put it; the contents beside it link to each section on GitHub.

create-tech-spec

Category: Technical Architecture

Usage

/create-tech-spec <spec-title> [--rfc RFC-XXXX]

Arguments

  • <spec-title>: Required - Descriptive title for the Tech Spec (will be kebab-cased for filename)
  • --rfc RFC-XXXX: Optional - Link to RFC that this spec implements

Execution Instructions

When this command is run, Claude Code should:

  1. Determine Tech Spec Number

    • Scan tech-specs/ directory (all subdirectories) for existing files
    • Find highest TS-XXXX number
    • Increment by 1 for new spec
    • If no specs exist, start with TS-0001
  2. Create Directory Structure (if not exists)

    tech-specs/
    ├── draft/
    ├── approved/
    ├── reference/
    └── archive/
        └── YYYY/
    
  3. Generate Tech Spec File

    • Convert title to kebab-case: "User Authentication API" → "user-authentication-api"
    • Create file: tech-specs/draft/TS-XXXX-<kebab-title>.md
    • Use template from skill references
  4. Populate Metadata

    • Set tech_spec_id to new number
    • Set title from argument
    • Set status to DRAFT
    • Set decision_ref to RFC if provided
    • Set created and last_updated to today's date
    • Leave author for user to fill
  5. If RFC provided, validate and link

    • Check RFC exists
    • Add link in metadata
    • Suggest copying relevant technical details from RFC
  6. Confirm Creation

    Created TS-XXXX: <title>
    
    Location: tech-specs/draft/TS-XXXX-<kebab-title>.md
    Status: DRAFT
    RFC Link: RFC-XXXX (if provided)
    
    Next steps:
    1. Fill in the Executive Summary
    2. Document the Design Overview with architecture diagram
    3. Complete API and Data Model sections
    4. When ready: /tech-spec-status TS-XXXX --set APPROVED
    

Template Reference

Use the template from: plugins/devops-data/skills/technical-specification/references/tech-spec-template.md

Example Usage

# Standalone tech spec
/create-tech-spec User Authentication API

# Tech spec implementing an RFC
/create-tech-spec Payment Gateway Integration --rfc RFC-0042

Read the full file on GitHub · 107 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 3d ago First seen · 107 lines · 12 tokens per session scan A d56eb048db0a

Subscribe to this mod's changes

create-tech-spec is a skill published in the GitHub repository jpoutrin/product-forge (15 stars, last pushed 6mo ago), licensed MIT. It adds 12 tokens to every session and 735 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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